抄録
This paper proposes a method to index bubble plumes and solid obstacles by a sheet laser beam for navigation of Autonomous underwater vehicle (AUV) in active shallow vent areas. The method first extracts bright regions of the laser beam's reflection, and then identifies the target using the region's area and its standard deviation. If the target is a bubble plume, this proposed method can estimate the plume's flow rate. The efficiency of the proposed method is verified with data obtained by a tank experiment.